Typescript support

README.md

@@ -224,3 +224,31 @@ jekyllTabs.init({
 ```
 
 Default styles for the toast message are present in the [css file](https://github.com/Ovski4/jekyll-tabs/blob/master/docs/tabs.css#L50-L70).
+
+Development
+-----------
+
+### Building the script
+
+Execute:
+
+```bash
+npm run build
+```
+
+The add the following content to the `tabs.js` file.
+
+```js
+window.addEventListener('load', function () {
+    jekyllTabs.init();
+});
+```
+
+### Building and pushing the gem
+
+Update the version number in `jekyll-tabs/version.rb`, then execute:
+
+```bash
+gem build jekyll-tabs.gemspec
+gem push jekyll-tabs-{version_here}.gem
+```

jest.config.js

@@ -1,5 +1,6 @@
 /** @type {import('jest').Config} */
 const config = {
+    preset: 'ts-jest',
     verbose: true,
     testEnvironment: 'jsdom',
     collectCoverage: true,

js/domHelpers.js → js/domHelpers.ts

@@ -11,7 +11,7 @@
  *
  * Then getChildPosition(document.querySelector('.one')) would return 1.
  */
-const getChildPosition = (element) => {
+const getChildPosition = (element: HTMLElement) => {
     const parent = element.parentNode;
 
     for (let i = 0; i < parent.children.length; i++) {
@@ -24,7 +24,7 @@ const getChildPosition = (element) => {
 /**
  * Returns a list of elements that match the given selector and text content.
  */
-const findElementsWithTextContent = (selector, text) => {
+const findElementsWithTextContent = (selector: string, text: string) => {
     const elementsMatchingSelector = document.querySelectorAll(selector);
     const elementsWithTextContent = [];
 
@@ -42,7 +42,7 @@ const findElementsWithTextContent = (selector, text) => {
 /**
  * Create a javascript element from HTML markup.
  */
-const createElementFromHTML = (html) => {
+const createElementFromHTML = (html: string) => {
     const template = document.createElement('template');
     template.innerHTML = html.trim();
 
@@ -52,7 +52,7 @@ const createElementFromHTML = (html) => {
 /**
  * Add the class on the given element for the duration of the timeout.
  */
-const addClass = (element, addedClass, timeout) => {
+const addClass = (element: HTMLElement, addedClass: string, timeout: number) => {
     element.className = element.className
         ? `${element.className} ${addedClass}`
         : addedClass;
@@ -63,7 +63,7 @@ const addClass = (element, addedClass, timeout) => {
     }, timeout);
 }
 
-module.exports = {
+export {
     getChildPosition,
     findElementsWithTextContent,
     createElementFromHTML,

js/jekyllTabs.js → js/jekyllTabs.ts

@@ -7,8 +7,23 @@ const {
     appendToastMessageHTML,
 } = require('./tabsHelpers');
 
-const init = (overriddenConfiguration = {}) => {
-    const defaultConfiguration = {
+interface CopyToClipboardSettings {
+    buttonHTML: string,
+    showToastMessageOnCopy: boolean,
+    toastMessage: string,
+    toastDuration: number,
+}
+
+interface Configuration {
+    syncTabsWithSameLabels: boolean;
+    activateTabFromUrl: boolean;
+    addCopyToClipboardButtons: boolean;
+    copyToClipboardSettings: CopyToClipboardSettings;
+}
+
+const init = (overriddenConfiguration: any = {}) => {
+
+    const defaultConfiguration: Configuration = {
         syncTabsWithSameLabels: false,
         activateTabFromUrl: false,
         addCopyToClipboardButtons: false,
@@ -20,7 +35,7 @@ const init = (overriddenConfiguration = {}) => {
         }
     };
 
-    const configuration = {
+    const configuration: Configuration = {
         ...defaultConfiguration,
         ...overriddenConfiguration,
         copyToClipboardSettings: {
@@ -29,10 +44,10 @@ const init = (overriddenConfiguration = {}) => {
         }
     };
 
-    const tabLinks = document.querySelectorAll('ul.tab > li > a');
+    const tabLinks: NodeList = document.querySelectorAll('ul.tab > li > a');
 
-    Array.prototype.forEach.call(tabLinks, (link) => {
-        link.addEventListener('click', (event) => {
+    Array.prototype.forEach.call(tabLinks, (link: HTMLAnchorElement) => {
+        link.addEventListener('click', (event: MouseEvent) => {
             event.preventDefault();
 
             handleTabClicked(link);
@@ -62,6 +77,6 @@ const init = (overriddenConfiguration = {}) => {
     }
 };
 
-module.exports = {
+export {
     init,
 }

js/tabsHelpers.js → js/tabsHelpers.ts

@@ -8,20 +8,20 @@ const {
 /**
  * Remove all "active" classes on li elements that belong to the given ul element.
  */
-const removeActiveClasses = (ulElement) => {
+const removeActiveClasses = (ulElement: HTMLUListElement) => {
     const liElements = ulElement.querySelectorAll('ul > li');
 
-    Array.prototype.forEach.call(liElements, (liElement) => {
+    Array.prototype.forEach.call(liElements, (liElement: HTMLLIElement) => {
         liElement.classList.remove('active');
     });
 }
 
 /**
  * Handle adding or removing active classes on tab list items.
  */
-const handleTabClicked = (link) => {
-    const liTab = link.parentNode;
-    const ulTab = liTab.parentNode;
+const handleTabClicked = (link: HTMLAnchorElement) => {
+    const liTab = link.parentNode as HTMLLIElement;
+    const ulTab = liTab.parentNode as HTMLUListElement;
     const liPositionInUl = getChildPosition(liTab);
 
     if (liTab.className.includes('active')) {
@@ -34,7 +34,7 @@ const handleTabClicked = (link) => {
         return;
     }
 
-    const tabContentElement = document.getElementById(tabContentId);
+    const tabContentElement = document.getElementById(tabContentId) as HTMLUListElement;
 
     // Remove all "active" classes first.
     removeActiveClasses(ulTab);
@@ -50,7 +50,7 @@ const handleTabClicked = (link) => {
  *
  * See https://stackoverflow.com/questions/51805395/navigator-clipboard-is-undefined
  */
-const copyToClipboard = (text, callBack) => {
+const copyToClipboard = (text: string, callBack: Function) => {
     if (navigator.clipboard && window.isSecureContext) {
         navigator.clipboard.writeText(text);
     } else {
@@ -105,7 +105,7 @@ const activateTabFromUrl = () => {
         return;
     }
 
-    const tabLink = targetedTabs.querySelector('li#' + tabIdToActivate + ' > a');
+    const tabLink = targetedTabs.querySelector('li#' + tabIdToActivate + ' > a') as HTMLAnchorElement;
 
     if (!tabLink) {
         return;
@@ -117,9 +117,9 @@ const activateTabFromUrl = () => {
 /**
  * Update the url when clicking on a tab. See method activateTabFromUrl above.
  */
-const updateUrlWithActiveTab = (link) => {
-    const liTab = link.parentNode;
-    const ulTab = liTab.parentNode;
+const updateUrlWithActiveTab = (link: HTMLAnchorElement) => {
+    const liTab = link.parentNode as HTMLLIElement;
+    const ulTab = liTab.parentNode as HTMLUListElement;
 
     const searchParams = new URLSearchParams(window.location.search);
     searchParams.set('active_tab', liTab.id);
@@ -131,12 +131,15 @@ const updateUrlWithActiveTab = (link) => {
 /**
  * Add the "Copy to clipboard" button on the top right hand side of tabs with embedded code (<pre> tags).
  */
-const addCopyToClipboardButtons = ({ buttonHTML, showToastMessageOnCopy, toastDuration }) => {
-    const preElements = document.querySelectorAll('ul.tab-content > li pre');
+const addCopyToClipboardButtons = (
+    { buttonHTML, showToastMessageOnCopy, toastDuration }:
+    { buttonHTML: string, showToastMessageOnCopy: boolean, toastDuration: number }
+) => {
+    const preElements = document.querySelectorAll('ul.tab-content > li pre') as NodeListOf<HTMLPreElement>;
 
     for(let i = 0; i < preElements.length; i++) {
         const preElement = preElements[i];
-        const preParentNode = preElement.parentNode;
+        const preParentNode = preElement.parentNode as HTMLElement;
         const button = createElementFromHTML(buttonHTML);
 
         preParentNode.style.position = 'relative';
@@ -146,7 +149,7 @@ const addCopyToClipboardButtons = ({ buttonHTML, showToastMessageOnCopy, toastDu
 
         preParentNode.appendChild(button);
 
-        let copyToClipboardCallBack;
+        let copyToClipboardCallBack: Function;
 
         if (showToastMessageOnCopy) {
             copyToClipboardCallBack = () => {
@@ -163,7 +166,7 @@ const addCopyToClipboardButtons = ({ buttonHTML, showToastMessageOnCopy, toastDu
 /**
  * Insert a div that contains the toast message at the end of the <body> tag.
  */
-const appendToastMessageHTML = (toastMessage) => {
+const appendToastMessageHTML = (toastMessage: string) => {
     const toastMessageDiv = document.createElement('div');
 
     toastMessageDiv.id = 'jekyll-tabs-copy-to-clipboard-message';
@@ -175,14 +178,14 @@ const appendToastMessageHTML = (toastMessage) => {
 /**
  * Set '.show' class on the div that contains the toast message for the given duration.
  */
-const showToastMessage = (toastDuration) => {
+const showToastMessage = (toastDuration: number) => {
     addClass(document.getElementById('jekyll-tabs-copy-to-clipboard-message'), 'show', toastDuration);
 }
 
 /**
  * Activate tabs that have the same label as the one related to the given link.
  */
-const syncTabsWithSameLabels = (link) => {
+const syncTabsWithSameLabels = (link: HTMLAnchorElement) => {
     const linksWithSameName = findElementsWithTextContent('a', link.textContent);
 
     for(let i = 0; i < linksWithSameName.length; i++) {
@@ -192,7 +195,7 @@ const syncTabsWithSameLabels = (link) => {
     }
 }
 
-module.exports = {
+export {
     removeActiveClasses,
     handleTabClicked,
     copyToClipboard,